question about primetime PX: about using create_power_waveforms

[zouyong]

[SOLVED] question about primetime PX: about using create_power_waveforms

Hi:
From a document named “PrimeTime® PX Methodology for Power Analysis v1.2”, it says "Unless you set power_force_saif_flow to TRUE, create_power_waveforms can not be used."
Then I "set set power_force_saif_flow TRUE", but still this "create_power_waveforms" can't be used.

pt_shell> create_power_waveforms
Error: Command 'create_power_waveforms' is not enabled as default. Set power_ui_backward_compatibility to TRUE to enable this command. (UIPWR-002)

pt_shell> set power_ui_backward_compatibility TRUE
Warning: Detected use of obsolete/unsupported feature. Variable
power_ui_backward_compatibility will not be available
in a future release of the application.
Please update your command usage accordingly.
Error: Can not enable or disable UI backward compatibility after power analysis commands have been issued. (UIPWR-008)
Error: can't set "power_ui_backward_compatibility":
Use error_info for more info. (CMD-013)

Can anybody tell me how to use this create_power_waveforms?
If this create_power_waveforms is unsupported anymore, is there any new command I can use to figure out the power waveforms?
Primetime Version: F-2011.06-SP1
Many thanks!!!

Using set power_analysis_mode time_based and update_power, I can get the waveforms now.

 

[sam536]

Check this wrto PTPX flow. Since you havent mentioned RTL/Gate level ,so giving all the details.

Regards, Sam

 

[zouyong]

View attachment 72844

Check this wrto PTPX flow. Since you havent mentioned RTL/Gate level ,so giving all the details.

Regards, Sam

Actually I tried both RTL and Gate level. if I just want to get a general cycle power waveform, do I have to read SPEF SDC files beside the netlist and VCD file?
Thanks.

 

[jgnr]

I'm having the same problem Zoyoung, i'm geting to run the power analasys, but i'm with this warning too.

The code that i'm using to run is:

#power.scr
set power_enable_analysis TRUE
set power_ui_backward_compatibility TRUE
set target_library "<yourlibrary>.db"
set link_library "<yourlibrary>.db *"

read_db $target_library
read_verilog <yourdesign>.v
current_design <yourdesign>
link
create_clock -period 60 -name clk [find port clk]
read_vcd dmp_top.vcd -strip_path <testbench_yourdesign>/<instantiation_name_in_testbench>
create_power_waveforms
report_power

So as said before this warnings were presented:

Warning: Detected use of obsolete/unsupported feature. The following
will not be available in a future release of the application:
create_power_waveforms. Use update_power with set power_analysis_mode time_based instead (CMD-100)
Warning: Some timing arcs have been disabled for breaking timing loops
or because of constant propagation. Use the 'report_disable_timing'
command to get the list of these disabled timing arcs. (PTE-003)​

If someone may help us with that, or explain if this warnings can be ingnored could be great.

Bye.